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. 2015 Apr 11;15:258. doi: 10.1186/s12885-015-1276-z

Table 2.

Mutation rates of each gene in 264 mCRC patients

Gene Wild type Mutation type Mutation rate (%)
KRAS codon 12,13 174 90 34.1
KRAS codon 61, 146 254 10 3.8
NRAS codon 12, 13, 61 253 11 4.2
BRAF codon 600 250 14 5.4
PIK3CA exon 9, 20 247 17 6.4